Premiere Pro CS5 audio sync

[LordPython]

I have shot some video on my iPhone 4 which I am editing in Adobe Premiere Pro CS5. I have copied all of the mov files off of my phone onto my laptop and have viewed them in quick time and they play just fine. However, when I import them into Premiere, they gradually lose sync. Is there a setting I am missing in Premiere to keep the sync? I have been looking for a solution to this for the past few hours, so I am finally giving up and asking for help.

Thanks.

[aedipuss]

use mediainfo on a file and copy paste the text mode results here. but, most likely source of audio problems is vbr audio, you might try converting it to pcm wav before using in pp.

[aedipuss]

op can't seem to reply so here's the mediainfo he sent me.

Ok, well for some reason the forum is not letting me reply to my own thread. It's telling me I don't have access. Anyway, I have posted the text file you requested below. General Complete name : C:\Editing\Halloween 2011\IMG_1325.MOV Format : MPEG-4 Format profile : QuickTime Codec ID : qt File size : 684 MiB Duration : 9mn 0s Overall bit rate : 10.6 Mbps Recorded date : 2011-10-16T01:06:44-0400 Encoded date : UTC 2011-10-16 05:06:44 Tagged date : UTC 2011-10-16 05:06:57 Writing application : 4.2.6 Writing library : Apple QuickTime Model : iPhone 4 ©xyz : +33.9993-083.9151/ Make : Apple Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : Baseline@L3.1 Format settings, CABAC : No Format settings, ReFrames : 1 frame Format settings, GOP : M=1, N=24 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 9mn 0s Bit rate : 10.5 Mbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Variable Frame rate : 24.180 fps Minimum frame rate : 22.222 fps Maximum frame rate : 31.579 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.473 Stream size : 679 MiB (99%) Title : Core Media Video Encoded date : UTC 2011-10-16 05:06:44 Tagged date : UTC 2011-10-16 05:06:57 Material_Duration : 540195 Material_StreamSize : 712134711 Material_FrameCount : 13062 Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 40 Duration : 9mn 0s Bit rate mode : Constant Bit rate : 64.0 Kbps Channel(s) : 1 channel Channel positions : Front: C Sampling rate : 44.1 KHz Compression mode : Lossy Stream size : 4.12 MiB (1%) Title : Core Media Audio Encoded date : UTC 2011-10-16 05:06:45 Tagged date : UTC 2011-10-16 05:06:57 Material_Duration : 540212 Material_StreamSize : 4321694

looks like it wasn't my first guess of vbr audio, but it appears it may be variable frame rate video causing the problem. i'm not sure how to fix that in pp, maybe someone else does?

[LordPython]

Ah, ya, it looks like I just needed to logout/in. I am able to reply now, yay.

Here's a repost of the info formatted the way it is in the text file.

General
Complete name : C:\Editing\Halloween 2011\IMG_1325.MOV
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 684 MiB
Duration : 9mn 0s
Overall bit rate : 10.6 Mbps
Recorded date : 2011-10-16T01:06:44-0400
Encoded date : UTC 2011-10-16 05:06:44
Tagged date : UTC 2011-10-16 05:06:57
Writing application : 4.2.6
Writing library : Apple QuickTime
Model : iPhone 4
©xyz : +33.9993-083.9151/
Make : Apple

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=24
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 9mn 0s
Bit rate : 10.5 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 24.180 fps
Minimum frame rate : 22.222 fps
Maximum frame rate : 31.579 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.473
Stream size : 679 MiB (99%)
Title : Core Media Video
Encoded date : UTC 2011-10-16 05:06:44
Tagged date : UTC 2011-10-16 05:06:57
Material_Duration : 540195
Material_StreamSize : 712134711
Material_FrameCount : 13062
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 9mn 0s
Bit rate mode : Constant
Bit rate : 64.0 Kbps
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 4.12 MiB (1%)
Title : Core Media Audio
Encoded date : UTC 2011-10-16 05:06:45
Tagged date : UTC 2011-10-16 05:06:57
Material_Duration : 540212
Material_StreamSize : 4321694

[LordPython]

Additional info: I have shot stuff on my iphone before and have had no problems, however those were shorter clips than what I'm trying to edit now. It seems the longer the clip, the more out of sync it gets.

[edDV]

CS5 Premiere was never intended to edit highly compressed phone video. Certainly not AAC audio.

How many iPhone users that also can afford Adobe Suite CS5 are there? May be a business opportunity.

So, Lord, what is your budget? $2000/year for Iphone + CS5. What would you pay?

[LordPython]

I'm not exactly sure what you're implying there, but I don't own the copy of CS5. It belongs to a friend of mine who videos weddings for a living, he lets me use his laptop when he's working on his desktop. And before you ask, Yes I asked him, he doesn't know how to fix it, since he uses actual cameras.

[edDV]

I'm not exactly sure what you're implying there, but I don't own the copy of CS5. It belongs to a friend of mine who videos weddings for a living, he lets me use his laptop when he's working on his desktop. And before you ask, Yes I asked him, he doesn't know how to fix it, since he uses actual cameras.

Premiere is designed for semi to pro camcorders, not iPhones. But it does great with MiniDV.

[edDV]

I'm not exactly sure what you're implying there, but I don't own the copy of CS5. It belongs to a friend of mine who videos weddings for a living, he lets me use his laptop when he's working on his desktop. And before you ask, Yes I asked him, he doesn't know how to fix it, since he uses actual cameras.

Premiere is designed for semi to pro camcorders, not iPhones.

Now, explain what you are doing (in detail) and we may be able to suggest other.

Mostly freeware

[LordPython]

I have imported the video into Premiere. When I view it (by either hitting the space bar or clicking the play button) it plays fine for about 10 secs, then starts to lose sync. I figured it was just a display problem with the laptop so I tried exporting a section of the video, but it was still out of sync.

OR, if you meant you could suggest another program.. I am just trying to edit clips out of a series of videos which are 5-10mins long and splice them together to make a montage. The only reason I am using CS5 in the first place is cause my friend uses it and can answer the more technical questions rather than me trying to figure out another application from scratch. However, if these files won't work with CS5, I guess I'll have to.

[budwzr]

An iPhone video is most certainly something that should be supported. Shame on premiere.

Sony Vegas supports that format and has a 30 day trial. Enjoy!

[LordPython]

Ok, thanks, I'll give that a try.

EDIT: I got the trial, it does handle the file format beautifully, now I just need to figure out how to use the software, he he. Thanks again.

[edDV]

The problem with Premiere (and most other editors) is it will take a non-supported format and use third party codecs to separately decode video and audio. Since iPhone video lacks industry standard time code, the decoded video and audio play independently without synchronization.

[LordPython]

Ah, so that explains it. I can't wait till I can afford an actual camera. I think it will make editing much easier, it will defiantly look much better. However, from what I am recording now, I need the stealth-ness of a camera phone. Basically I take a bunch of video at my girlfriend's family get together s (almost everyone gets drunk and funny) I then edit the footage into a funny montage and add some music. Everyone always love them (when they're not in them) but they know no one is safe, he he.

[budwzr]

Ok, thanks, I'll give that a try.

EDIT: I got the trial, it does handle the file format beautifully, now I just need to figure out how to use the software, he he. Thanks again.

Tips: You don't need the trimmer window, make cuts with the "C" key, use up/down arrows to zoom in/out. It's very simple and straightforward. Look for the tools you need right in the timeline, at the place you need them, not in a pulldown or dialog box. Everything is "graphical" as it should be in a proper GUI.

[budwzr]

Basically I take a bunch of video at my girlfriend's family get together s (almost everyone gets drunk and funny) I then edit the footage into a funny montage and add some music. Everyone always love them (when they're not in them) but they know no one is safe, he he.

Sounds like fun. Don't forget to record some pharts too. They're good to throw in as sound effects even if no one farted.

Here's one to get you started:

[LordPython]

Thanks for the shortcut info and the sound effect.

[turk690]

Ah, so that explains it. I can't wait till I can afford an actual camera. I think it will make editing much easier, it will defiantly look much better. However, from what I am recording now, I need the stealth-ness of a camera phone. Basically I take a bunch of video at my girlfriend's family get together s (almost everyone gets drunk and funny) I then edit the footage into a funny montage and add some music. Everyone always love them (when they're not in them) but they know no one is safe, he he.

An actual camcorder will not save you if the audio is external. I shoot and edit videos of events shot with AVCHD camcorders on Premiere Pro CS5. Audio is mainly taken from FOH, captured on a Zoom R16. These events last more than 2hrs mostly. When Premiere gained the ability to natively open and edit AVCHD in CS4, the one thing I immediately noticed jumping in was audio would drift by as much as 10 frames total or more over the course of two hours or so. Fortunately, since audio was in one long file and AVCHD video was in 2GB chunks (about 11 minutes or so each) as created by the camcorder, I just manually synced each clip to its respective place vis-a-vis the audio on the timeline. This way, audio drift is distributed through out the program in small, unnoticeable lengths. Cutting between clips in a multi-cam timeline further removes any hint of audio-video sync issues.